Motor.



W.l S. ELLIOTT,

` MOTOR.

APPLICATION FILED MAR. 20, 1811. 1,068,421 Patented. July 29, 1913. s Simms-SHEET 1.

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Y W. S. ELLIOTT.

MOTOR.

v APPLICATION FILED MAB..20,V191`1. I lmgqg o Patented July 29, 1913r 4 s SHBETFBHBT 2.

NNNNNN 0R W. S. ELLIOTT.

MOTOR..

m1' Patented July 29, 1913.

3 SHEETS-SHEET 3.

WILLI-A111 S. ELLTT, OF PITTSBURGH, PENNSYLVANIA.

roesaei.

Specfieation of Letters Patent.

Patented July 29,1913;

Application filed lll-arch 20, 1911. Serial No. 615,600. I

reference being hadto the accon'ipanying drawings, forming part. of this specifica-tion, in Whichl `ignre 1 is a longitudinal section showing my invention applied to a motor ot' the turbine type; Fig. 2 is a section on the line ll-Il of Fig. 1; Fig. 3 is a side elevation with the casing in section and showing a modification; Fig. 4- 1s a section on the line V-lV of Fig. 3; Fig, 5 is a long gitudinalyl section sliiowing` my invention 'applied to a. motor of the radially reciprocating blade type: Fig. (i is a section on the line Vl Vl ot Fig. 5: Fig. 7 is a View similar to Fig. 3,

but showing another modification; Fig. 8 is a section on the line VlllL-Vlll of Fig. 7; Fig. 49 is a side View ot' the cylinder forming the bearing element of Fig. 1; F ig. 10

a perspective View of the iller and tie member of Fig. 3; Fig. 11 is a perspective 'view of' the cyliiider and tie member of F 7; and Fig. 12 is a perspective View of the washer ot Figs. 5 and 7.

My invention has relation to Huid pressure 'inotors, and is designed toprovide an etliradially reciprocating piston type, in which air or steam tornis the mot-ive power.

The nature ot my invention will be best unders-itood by reference to the accompanying drawings, in which l have slidwn several different embodiments thereof, and

- Which will now be described, it being pre- ,m1sed, however, that various changes can be made in the details of construction and arrangement ot the several parts Without de parting from the spirit and scope of my 1nvention.

Referringtirst to the torni of motor shown in Figs. 1, 2 and 9, the'numeral 2 designates an outer casing or shell, which is shown as of cylindrical forniand which is ope-n atlboth ends, being preferably rabbcteil intei-iorly at its rear end to receive the iange of the coupling member l for the supply pipe. 5 designates a cylinder-forining and bearing member having the flange (3 at its forward end for engagement with the front end of the casing cylinder 2. The front end portion of the member 5 is of spider form, with a plurality of lon itudi nal openings 7 for the free escape of tie eX- haust liquid, and its hub seats an elongated bushing 8 which forms the front shaft bearing. This bushing preferably has .a shoul# dered engagement at 9 with the member 5, back of which the bushing is enlarged, such enlarged portion terminating in the piston chamber 10. 'l he rear portion of the meinber 5 is connected to the front portion by theintegral tie portions 11 at diametrically opposite sides, forming the o ening 12, through which the .turbine mem er 13 may be inserted in the chamber 10. The rear end portion 5L of the member 5 is of reduced diameter, and is formed with an exterior thread 5b for a portion of its length to receive the inner flange 4a .of the coupling member 4, and is also internally threaded at 5c to receive an exterior thread on a plug 14. The member 4 has the admission chamber 15, which communicates with an' admission chamber 16 Within the. motor casing by a plurality of ports 1-7. The rear portion fr1 or' the member 5 seats a` shouldered bushing 18, which constitutes the rear bearing for the motor shaft 19. The rear' end of the shaft is provided with a thrust collar 20, which extends Within the recessed inner end of the plug 14, and Which has a front thrust bearing against the shouldered end of the busliing 18. A thrust member or washer 21 is interposed between the ei'ilarged inner end ot' the bushing 9 and the turbine element 13.

The rear Wall of the chamber 1() is provided with a plurality ot admission ports 22 toi' conducting the fluid from the chamber 16 to the turbine element. 23 is a. pin seated in the outer casing 2- and adapted to engage a longitudinal groove Q4 in the member 5, to prevent its rotation Within the casing, said groove being open at its rear end. In assembling the'parts, the turbine element is inserted through one of the openings 12 ot the member 5 With its central opening in alinement with the sha-tt bearings, and with the key 25, Which secures said element to the shaft 19 in place. .The shaft. 19 is then insorted through the rear end ot the portion a-of t-he member 5; the plug 14 is then screwed in, and the parts thus assembled are inserted into the casing 2 from the forward end there-of. The coupling member' 4 is then screwed up on the threaded portion 5b to securely lock the parts in place. By unscrewing the connection at 5b, all the parts contained Within the casing 2 can be removed from the forward end thereof. In order to form a complete inclosure for the chamber l0 within the member 5, I provide the fill. ers 26 shown in Fig. 2, and which fit between the tie portions 11. It will be noted that' these tie portions 11 form tension members connecting'the, front and rear bearing sups ports;,whi'le theo-uter casing acts as a compression member.

' In the modification shown in Figs. 3, 4 land 10, the construction is the same as that shown in Figs. l and 2, except that instead of forming the front bearing member 27 assembling this form of motor, the turbine wheel is placed within the cylindrical member 29, and thel latter 'is inserted between the members 27 and 28, and held in position by the pins 32.` The shaft is then inserted through the wheel in the same manner as in the construction shown in Figs. 1 and 2. i

Figs. 5 and (5 illustrate the application of my invention to a motor which is adapted to be operated by steam or compressed airpreferably compressed air. In this form of my invention, the stationary bearing member 33 is generally similar to the member 5 first described. It is inserted in the outer casing 34 in the same manner as the member 5 in the case 2. lThe member 33is out away to provide openings at the sides, through which the cylinder 3 5, forming the piston chamber, may be inserted. This cyl inder member is open at both ends, and is flattened off on two of its sides, as shown at 36 in Fig. G, so as to fit the inner fiat surfaces of the tie portions 33a of the member 33, these tie portions 33a corresponding generally to the tie portions 11 of the motor first described. The piston has an eccentrioally formed piston chamber 37. 3S is the motor shaft, which is provided with bushed bearings in the front and rear portions of the member 33, and which has an enlarged piston portion 39 within t-he chamber 37, which carries the radially reciprocating piston blades 40. 41 is an admission port, connected with the piston chamber preferably by a plurality of cross ports 42. 43 1s an eX- haust port connected with the pistonhchamber 37 preferably by the plurality of cross ports 44. The rear portion 33b of the memL ber 33 is of sufficiently large diameter to receive therein a removable bearing seating member 45, in which the bushing 46 for the rear bearing is seated. This memberv45 is securedin place by the screw plug 47, which screws into the openl rei end 'of the rear portion 33"l of the member 33. An air space 48 isprovided between the rear end of the shaft 38 and the rear closed end of t-he member 45, 'and having an escape opening 49 to the atmosphere to relieve end pressure on the shaft. The shaft 3S is provided at each end of the piston portion with a thrust collar or enlargement 50. These thrust collars or enlargements lbear against thc inner ends of the shaft bushings, thereby effectively prevent-ing end motion of the shaft.' A wear plate or washer 51 is preferably seated around the front shoulder or enlargement 50, and between the end of the cylinder and the rear part of the .member 33. The manner of assembling the parts of this nio-tor is substantially the saine asin the forms first described..- The cylinder is first inserted through one of the-side openings of the member 33, and the shaft is inserted endwise therethrough into its bearings. The parts are then inserted into the casing 34 from the forward end thereof, and are se cured by screwing on'the coupling member at 52, which is substantially the same as the coupling member 4 first described.

In the modification illustrated in Figs. 7, 8 and 11, the construction is substantially the same as in the form shown in Figs. 5 and 6, except that instead of forming the front and rear shaft bearing portions of the stationary member in one piece connected by straps, they are formed as two separate .pieces 53 and 54, and are connected or tied together by means of the cylinder`55. This cylinder is formed at its ends with the hooks 5 6, which engage hooks 57 of complementary form on the members 53 .and 54. The construction is otherwise the same as that shown in Figs. 5 and 6. 1

The advantages of my invention result from the manner of constructing, arranging and assembling the `several parts, whereby they can be readily inserted into and removed from the front end of. the motor casing or shell` and whereby any part may be quickly reached for renewal or repairs.

The specific claims to the forms of my iuvention shown in Figs. 3, 4, 7 and 3 arel made in a. divisional application Serial No. 729,075, filed November lst, 1912.

ico

What I claim is l. fluid pressure motor, comprising an outer shell, front and rear shaft bearings contained within the shell and removable' from the front end of the shell, means lwhereby a motor element may bel inserted intermediate the shaft bearings, and means at the rear end of the casing or shell for securing the parts within the shell; substantially as described.- i

2. A fluid pressure motor, comprising an outer shell, front and rear shaft bearing portions removable from the o ter shell at its front end, means for inserting a motor element -between the Vshaft bearing vport-ions and for effecting a tie connection between said portions, and a securing member at the rear end of the shell having a securing engagement with the portion carrying the rear Vshaft bearing;`\substantially as described.

3. A fluid pressure motor, 'comprising an outer shell, front and rear shaft bearing portions removable from the outer shell at its front end, means for inserting a motor element between the shaft bearing portions and for effecting a tie connection between said portions, and a securing member at the rear end of the shell having a securing engagement with the portion carrying the rear shaft bearing,said securing member also constituting va coupling member for the motor supply pipe or hose; substantially as described. i

4. A fluid pressure motor, comprising an outer shell, a front sha-ft bearing member having a flange at its forward end engaging the front end of the outer shell, a rear shaftw bearing member, a t-ie connection between said members, a motor. element intermediate the shaft bearing portions, and removable in a direction transverseto the axis` of the motor, and means for securing the shaft bearing portionswithin the outer shell; substantially as described.

5.` A fluid pressure motor, comprising an outer shell, front and rear shaft bearing portions, a tie member connecting said portions with an intermediate motor chamber, and a motor element in said chamber which can be removed therefrom in a direction transverse to the lbngitudinal axis of the motor when the parts are removed from the outer shell; substantially as described.

G. A fluid pressure motor, comprising an outer shell, front and rear shaft bearing portions having a tie connection and an intermediate motor space, said shaft bearing por tions being removable from the front end of the shell, a. motor shaft insertible into its bearings from one end, and a motor element which can, only be removed after the remoral of the outer shell; substantially as described.

7. A fluid pressure'motor, comprising an open-end shell, a stationary member insertible into and removable from the shell at the forward end thereof, said member having front and rear shaft bearing portions, and a connecting or tie portion. containing a motor chamber, a motor element in said chamber, a. motor shaft journaled in said bearings and insertible and removable therefrom at the rear of its rear bearing, means for' normally securing the shaft against endwise movement, and a securing member extending into the rear end of the shell and having a securing engagement with the rear shaft bearing portion; substantially as described. y

8. A Huid pressure motor, comprising .an outer shell, front and rear shaft bearing portions separated by a motor space, with tie connections across said space, the rearshaft bearing portion having coupling means, a couphngmember therefor, and a removable plug member having a securing engagement with the said rear shaft bearing portion; substantially as described.

9. In a Huid pressure motor, comprising an outer shell, a front shaft bearing portion Ahaving a flanged engagement with the forward end of the shell, a rear=shaft bearing portion having a. threaded extension, said shaft bearingv portions being inscrtible into and removable from the shell at the front end thereof and separated from each other by a inotoi' space or chamber, a. tie connection between said portions,and a securing member engaging said extension; subst-antially as described.

' l0. Ina fluid pressure motor, comprising an outer shell, a front shaft bearing portion having a. flanged engagement with the forward end of the shell, a rear shaft bearing portion having a threaded extension, said shaft bearing portions being insertible into and removable from the shell at vthe front end thereof and separated from each other by a motor space or chamber, a tie connection between said portions, and a securing member engaging said extension, said extension ieing arranged to permit a motor shaft to bgeinserted therethrough into its bearings from the rear; substantially as described.

11. A-fluid pressure motor, com rising an outer shell, front and rear Ashit` bearing portions removable from they-f` ont end of the shell, said portions being separated from each other by a motor space or`chamber and having a tie connection, the rear shaft /bearing portion having an extension `ofreduced diameter to form a surrounding admission chamber, and a. coupling member extending into the rear end of the shell and having a securing engagement with said extension; substantially as described.

12. A fluid pressure motor, comprising an' outer shell, front and rear shaft bearing portions iusertible into and removable from the fro-nt end of the shell, said portions be ing separated from each other by a motor space or chamber and having a tie: c nnec'- tion, the rear shaft bearing portiorf1E iaving an extension of reduced diameter to form a surrounding admission chamber,` and a coupling member extending into the rear end of the shell and haying aI securing engagementK with said extens1on, together with ports con dependent of the outer shell, and means for.

securing said shaft bearing portions Within the shell and for preventing their rotation,`

said bearing portions being arranged to permit a motor shaft to be inserted and removed from its bearings through the rear bearing; substantially as described.

111. A fluid pressure motor, comprising an outer shell, front and rear shaft bearing portions insertible into and removable from said shell at its front end, a moto-r shaft removable from said portions through the rear shaft bearing, a motor element secured to said shaft between the tivo bearings, said shaft having a thrust engagement with its hearings to prevent endvvise movement thereof, and a coupling member extending into the rear portion of the casing or shell and normally securing the shaftbearing portions against removal; 'substantially as described. l

15. A fluid pressure motor, comprising an outer shell, front and rear shaft bearing port-ions insertible into and removable from said shell at its front, a motor shaft insertible 'and removable from said portions through the rear shaft bearing, a motor element secured to said shaft between the two bearings, said shaft haviiig a thrust engagement with its bearingsto prevent end ivise movement thereof, a coupling member eX- tending into the rearportinuof the easing or` shell and normally securing the shaft bearing portions againstvri moval, and a removable member for nor ally preventing rearward movement of the rear shaft bearing; substantially as described.

16. In a fluid pressure motor, an outer shell, front and rear shaftbearing portions removable from the front end of the shell, and a motor element intermediate the shaft bearing portions, said portions having' a tie connection; substantially as described.

17. In a fluid pressure mot-or, an outer shell, front and rear shaft bearing portions, removably seated in said shell, and having a tie connection inclosing a motor chamber intermediate said bearings, a motor shaft journaled in said bearings, and a motor eleon,ly be removed after the removal of the shaft from its bearings and the removal of the shaft bearing port-ionsl from the shell; substantially asdescribed.

18. In a fluid pressure motor, an outer shell, front andrear shaft bearings removably seated in the shell, and having a tie tion of said bearing portions Within the shell; substantially as described.

19. A fluid pressure motor, comprising an outer shell, front -and rear bearing supports removably seated in said shell,'a tie connection between said supports, and a motor .shaftyjournaled in said supports, the rear support having an opening therethrough to permit said shaft to be inserted and removed `through said opening fro-mthe rear side of said bearing, and a plug normally closing said' opening; substantially as described.

20. A motorhaving admission andy eX- haust ports communicating With a.motor chamber, -front and rear bearing supports connected by a tensiornmember, and a compression member outside the tension member and inclosing the tension member; substantially as described.

21. A fluid pressure motor having front and rear bearings and an intervening motor chamber, said bearings having a tie connection outside of the motor chamber, a shaft and thrust bearings, the shaft bearings and thrust bearings being removable through the rear bearing support from the rear side thereof; substantially as described.

'In testimo-ny Wherof, I have hereunto set my hand.

WILLIAM S. ELLIOTT. ..1 VVitnesse's:

G. M. Vinns,

H. M. ConwiN.

Copies ot this patent maf ,fue obtained for five cents each, by addressingthe Commissioner of latents.

Washington, D. C.

ment carried by said shaft and which canconnection, and means for preventing rota sov 

